protected WorkflowDocumentService getWorkflowDocumentService() {
   if (this.workflowDocumentService == null) {
     this.workflowDocumentService = KRADServiceLocatorWeb.getWorkflowDocumentService();
   }
   return this.workflowDocumentService;
 }
 private static WorkflowDocumentService getWorkflowDocumentService() {
   if (workflowDocumentService == null) {
     workflowDocumentService = KRADServiceLocatorWeb.getWorkflowDocumentService();
   }
   return workflowDocumentService;
 }